W77L516A Datasheet, PDF (22/89 Pages) List of Unclassifed Manufacturers – 8-BIT MICROCONTROLLER

W77L516A
ISP OPERATION MODES
Bit:
7
-
6
5
WFWIN NOE
4
3
2
1
0
NCE CTRL3 CTRL2 CTRL1 CTRL0
Mnemonic: SFRCN
Address: AFh
WFWIN: Destenation ROM bank for programming, erasure and read. 0 = APFLASH, 1 = LDFLASH.
NOE: Flash EPROM output enable.
NCE: Flash EPROM chip enable.
CTRL[3:0]: Mode Selection.
ISP MODE
WFWIN
Erase 4KB LDFLASH
1
Erase 64K APFLASH
0
Program 4KB LDFLASH
1
Program 64KB APFLASH 0
Read 4KB LDFLASH
1
Read 64KB APFLASH
0
NOE
1
1
1
1
0
0
NCE
0
0
0
0
0
0
CTRL<3:0>
0010
0010
0001
0001
0000
0000
SFRAH, SFRAL
X
X
Address in
Address in
Address in
Address in
SFRFD
X
X
Data in
Data in
Data out
Data out
PORT 3
Bit:
7
6
5
4
3
2
1
0
P3.7 P3.6 P3.5 P3.4 P3.3 P3.2 P3.1 P3.0
Mnemonic: P3
Address: B0h
P3.7-0: General purpose I/O port. Each pin also has an alternate input or output function. The
alternate functions are described below.
P3.7 RD Strobe for read from external RAM
P3.6 WR Strobe for write to external RAM
P3.5 T1 Timer/counter 1 external count input
P3.4 T0 Timer/counter 0 external count input
P3.3 INT1 External interrupt 1
P3.2
P3.1
P3.0
INT0
TxD
RxD
External interrupt 0
Serial port 0 output
Serial port 0 input
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